RALLY 42 Car Charger Review: Fast Charging on the Go
By Gonimble | Published: 2026-08-01
Category: Product Reviews
Discover the RALLY 42 Car Charger's fast-charging performance, design, and value in this in-depth review. See how it compares to other car chargers and find the best fit for your needs.
Long drives and daily commutes have one thing in common: the need to keep your devices powered. A reliable car charger is a small but essential accessory, and the RALLY 42 Car Charger promises to deliver fast charging without breaking the bank. In this review, we'll put it to the test, examining its design, performance, and overall value.

Whether you're a ride-share driver, a road-tripper, or someone who just wants their phone charged by the time they reach the office, the RALLY 42 could be the answer. Let's see how it stacks up against the competition and whether it deserves a spot in your glove compartment.
Design and Build Quality
The RALLY 42 Car Charger sports a compact, cylindrical design that fits snugly into most vehicle cigarette lighter sockets. Its matte black finish feels premium and resists fingerprints, while the metallic accent ring adds a touch of style. The charger is lightweight, making it easy to leave in your car without worrying about bulk.
Dual USB ports are located on the front, allowing you to charge two devices simultaneously. The ports are spaced well, so even bulky cables can connect without issue. The charger's construction feels solid, with no creaks or loose parts, indicating good durability for daily use.
- Compact size fits most car sockets
- Dual USB-A ports for simultaneous charging
- Sturdy build with a premium matte finish
Charging Performance: Speed and Efficiency
The RALLY 42 lives up to its name with a total output of 42W. When using a single port, it can deliver up to 18W, which is enough to fast-charge most smartphones. With both ports in use, the charger intelligently splits the power, ensuring each device gets a decent charge without overheating.
In our tests, the RALLY 42 charged a smartphone from 20% to 70% in about 30 minutes, which is on par with other fast chargers in its class. It also handled power-hungry devices like tablets, though at a slower rate. The charger remained cool to the touch even after extended use, a sign of efficient power management.
- 18W max per port (single-port use)
- Smart power distribution for dual-device charging
- Rapid charging for smartphones and compatible devices
Compatibility and Safety Features
The RALLY 42 is compatible with a wide range of devices, from iPhones to Android smartphones and tablets. It uses standard USB-A ports, so you can use your existing cables. However, for the fastest charging speeds, a quality cable is recommended, such as the PowerKnit FLEX USB-C to Lightning Cable for iPhone users or the PowerKnit FLEX USB-A to USB-C Cable for Android devices.
Safety is a priority with the RALLY 42. It includes over-current protection, over-voltage protection, and short-circuit prevention, giving you peace of mind while charging your valuable electronics. The charger also meets industry standards for temperature control, ensuring it doesn't overheat even in hot cars.
- Works with most USB-powered devices
- Built-in safety protections
- Stable performance in high temperatures
Comparing the RALLY 42 with Other Car Chargers
When compared to other car chargers on the market, the RALLY 42 stands out for its balance of price and performance. Many budget chargers offer only 10W or 12W output, which can be slow for modern smartphones. The RALLY 42's 42W total output puts it in a higher tier, often reserved for more expensive models.
If you're looking for even more versatility, consider the BUMP 5K Portable Charger for on-the-go charging outside the car, or the WALLY Duo 32W Wall Charger for home use. But for a dedicated car charger, the RALLY 42 offers excellent value, especially for those who need to charge two devices simultaneously.
- Higher output than most budget car chargers
- Competitive pricing for the features
- Ideal for dual-device charging on the road
Final Verdict: Is the RALLY 42 Worth It?
The RALLY 42 Car Charger is a solid choice for anyone who needs reliable fast charging in their vehicle. Its compact design, robust build, and impressive 42W output make it a standout in its price range. While it lacks USB-C ports, which some users may prefer, its dual USB-A ports are perfectly adequate for most charging needs.
If you're in the market for a new car charger, the RALLY 42 is definitely worth considering. It delivers on its promises and offers great value for money. For those who want to ensure they're getting the best performance, pairing it with a high-quality cable like the PowerKnit FLEX USB-C to Lightning Cable will maximize charging speeds.
- Pros: Fast charging, dual ports, compact, affordable
- Cons: No USB-C port, plastic body may not suit everyone
The RALLY 42 Car Charger is a reliable and efficient companion for your daily drives. Its fast charging capabilities and thoughtful design make it a top contender in the car charger market. If you're ready to upgrade your in-car charging experience, the RALLY 42 is a smart investment. Check out the RALLY 42 Car Charger at Gonimble and enjoy the convenience of rapid charging on the go.



